Manual-power machine



No. 625,475. Patented May 23, I899. J. H. SMITH.

MANUAL POWER MACHINE.

(Application filed July 13, 1698.) (No Model.) 2 Sheets-Sheet l.

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MANUAL POWER MACHINE.

(Application filed July 13, 1898.)

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UNITED STATES PATENT OFFICE.

JOHN H. SMITH, OF GLIDE, OREGON.

MAN UAL-POWER MACHINE.

SPECIFICATION forming part Of- Letters Patent NO. 625,475, dated May 23,1899.

Application filed duly 13, 1893. Se al NO- 685,863. (No model.)

To all whom it may concern:

Be it known that 1, JOHN H. SMITH, a citizen of the United States,residing at Glide, in the county of Douglas and State of Oregon, haveinvented certain new and useful Im provements in Manual-Power Machines;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which itappertains to make and use the same.

This invention relates to manual-power machines or windlasses adaptedfor moving heavy bodies, such as houses,pu1ling stumps, or elevating andlowering weights of various character; and it consists, essentially, ofa support having in one side thereof an operating-wheel connected to adrum upon which a rope is adapted to wind or be unwound therefrom,hand-levers being located on opposite sides of the wheel with engagingdevices for turning the same, and a brake at the upper part for limitingthe movement, particularly in elevating or lowering heavy bodies.

The invention further consists of the details of construction andarrangement of the several parts, which will be more fully hereinafterdescribed and claimed.

The object of the invention is to provide a machine wherein theexpenditure of manual power through the medium of hand-levers will bedecreased and controllable at all times to facilitate the movement ofheavy bodies or displacement of resisting forces either in horizontal orvertical planes.

In the accompanying drawings, Figure 1 is a side elevation of theimproved machine. Fig. 2 is a section through the same. Fig. 3 is an endelevation thereof. Fig. 4 is a top plan view.

Referring to the drawings, wherein similar numerals of reference areemployed to indicate corresponding parts in the several views, thenumeral 1 designates the side sills of a base 2, which are connected byend cross-ties 3. Rising from the center of the sills are standards 4,connected by a cap-beam 5, and journaled in the said standards at asuitable elevation is a shaft 6, having a square portion 7, on which ismounted a drum 8, and connected to the drum or relatively coaetingtherewith is a wheel 9. The standards 4. are

' supported by opposite oblique braces 10, and

running from one of the standards to the cap 5 is an upper brace 11.Thus it will be seen that the parts are all thoroughly braced andreinforced to provide stable support for the Working mechanism and alsoto resist the straining tension incident to moving heavy objects.

The wheel 9 is composed of two oppositelysituated rims 12, havingconsiderable Width and connected by bolts 13, on which spacesleeves 1.4are mounted to hold the said rims at a proper distance apart from eachother. Extending inwardly from each rim are flat spokes 15, which areregularly arranged, and connected to the outer portion of each is theouter end of a tangential brace 16, which has its opposite. end runningto and firmly secured to the inner portion of an adjacent spoke. Thismode of bracing the spokes is continued throughout the whole series andin each rim, and crushing or fracture of said spokes is therebyprevented. The inner ends of the spokes 15 connect by suitable meanswith a central hub 17, and the strain by arrangement of the tangentialbraces 16 is equally divided or distributed on all the spokes.

A rock-shaft 18 is pivotally mounted in the sills 1 adjacent one end ofthe base 2, and firmly secured thereto is the inner end of a hand-lever19, having a slot 20 near said inner end thereof, in which ispivotallymounted the lower end of an elongated curved catchpawl 21,having an engaging head 22 at its upper end. The said head 22 has aconcave engaging edge 23 to adapt it to pass overthe space-sleeves 14son the bolts 13, and at the lower portion of said head a shoulder 24 isformed to drop over the said space-sleeves for the purpose of rotatingthe wheel 9 in a manner which will be presently set forth. The distancebetween the space-sleeves and the dimensions of the head 22 areproportioned relatively in order that the said head may properly operatewith the said sleeves.

On the opposite end of the base 2 and rising from the cross-tie 3 is afulcrum-post 25, which is slotted at its upper end to pivotally receivea second hand-lever 26. The inner end of this hand-lever 26 is alsoslotted, and therein is pivotally mounted the lower end of a push-pawl27, having an upper head 28,with

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a concave engaging surface 29 to bear against the adjacent underportions of the sleeves 14 in succession, and thereby increase the powernecessary to rotate the wheel 9. The head 28 at one side extendsupwardly a greater distance, as at 30, so as to always insure anengagement with the sleeves 14, and the inner edge of the pawl is curvedin such manner as to easily ride over the successive sleeves in taking anew hold. To retain the push-pawl in proper engagement with the severalsleeves, a spring 31 is secured to the lever 26 and bears against thesaid pawl. Secured to the end of the said cap 5, adjacent to one of thestandards 4, is a transverse support 32, having its opposite endslotted, as at 33 and 34, and pivotallymonnted in the slotted end 34 isa gravitating pawl 35, which has a lower broadened end 36, adapted toautomatically drop over the successive sleeves 14 and prevent backwardmovement of the wheel 9, while the levers 1.9 and 26 are operated tocause their pawls to change position, and thereby avoid release or slackof the cable, which is wound on the drum 8 and attached to the objectbeing moved. In the slotted end 33 of the said transverse support abrake-lever 37 is pivoted and provided with a lower brake-shoe 38, whichis brought to bear upon the peripheries of the wheel-rims 12. Connectedto the upper end of the brake-lever 37 is a link 39, which is in turnmovablyattach ed to the outer end of an operating-lever 40, pivotallymounted in a fulcrum-block 41, secured on top of the cap 5.

In operating the wheel the levers 19 and 26 are grasped and the formerelevated to raise the pawl 21 and cause the shoulder 24 of the head 22thereof to take over the sleeve 14 and bolt 13 next above, and to attainthis operation the said lever 19 is elevated and afterward depressed todraw the wheel 9 around. At the same time or independently, as may befound desirable, a downward pressure is exerted on the lever 26, whichforces the pawl 27 upwardly to its full stroke and afterward elevated tocause the'head 28 of the pawl 27 to take hold of the next lower sleeve14 and bolt 13. By working these levers and pawls simultaneously theapplied power is increased, and it will be seen that the pawl 27 at alltimes engages the sleeves 14 and the bolts 13 therein at a plane belowthe point of engagement of the head 22 of the pawl 21. As the wheel isrevolved by the said pawls 21 and 27 the drum 8 is rotated and the cablewound thereon when a drawing power is desired. During the rotation ofthe wheel 9 the gravitating. pawl 35 automatically operates to sustainthe adjustment and is positioned atsuch an angle as to make itimpossible for an outthrow thereof or disengagement from the sleeves andbolts. As an additional protection against accident the brake-lever 37may be operated at any time tocheck the loose movement of the wheel 9,and which is accomplished through the operating-lever 40. This brakeattachment, however, is particularly adapted for use when the machine isemployed for elevating or lowering heavy weights, and, if desired, attimes the general position of the machine might be changed toaccommodate the work done or to be done.

By the arrangement of levers as set forth, in connection with the wheel9, a strong pulling power can be exerted and utilized for variouspurposes, and owing to the compactness and comparative simplicity of themechanism the machine may be easily transported from one place toanother without inconvenience and is always ready for operation.

Of course additional appurtenances such as blocks, guys, and the likemay'be ,used with the machine to facilitate its operation, and changesin the proportions, dimensions, and minor details of construction mightbe resorted to without departing from the nature or spirit of theinvention or sacrificing any of the advantages thereof.

Having thus described the invention, what is claimed as new is In amachine of the character set forth, the combination of a frame having abase, a shaft having a square portion, a drum'mounted on said squareportion of the shaft and having a wheel attached thereto provided with acircum ferential space between parts thereof and cross connections withintervening openings, arock-shaft on the base of the frame, a handleverattached to said rock-shaft, an elongated pull-pawl attached to saidlever and adapted to engage the connections of the wheel, an

opposite hand-lever carrying a push-pawl to engage said connections, abrake-lever having a shoe located above the wheel and adapted to engagean upper part of the latter, and an upper gravitating-pawl to engage thecon nections of the wheel.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN H. SMITH. Witnesses:

CHARLES WA'rsoN, JOHN L. WATSON.

